Shiraishi started climbing at the age of six at Rat Rock in Central Park, joining her father.

Her numerous accomplishments include first-place finishes in international competitions, and multiple first female and youngest ascents.

[6] Shiraishi began climbing competitively at age 7, in 2008, and paired with coach Obe Carrion, an accomplished climber.

Their partnership ended in 2012, largely due to tensions and disagreements between Carrion and Shiraishi's father, who has coached her since.

[7] At age 8, Shiraishi climbed the classic boulder problem Power of Silence (V10), in Hueco Tanks, Texas.

[9] In 2013, Shiraishi continued to excel at both bouldering and lead climbing, adding a 5.14a (Slow Food at Céüse)[10] two more V13s (One Summer in Paradise and Automator)[11][12] and finally two 5.14c's (24 Karats and 50 Words for Pump).

[32] In 2020 Shiraishi wrote How To Solve A Problem, an illustrated children's book with drawings by Yao Xiao.

[33] She is sponsored by Evolv, Arc’teryx, Clif Bar, Petzl, Coca-Cola Japan, All Nippon Airways and Nikon.